Finding the Fourth Proportional to 118,350,889.07, 163,310,082.12 and 65,420,446.68
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Solution
The fourth proportional to 118,350,889.07, 163,310,082.12 and 65,420,446.68 is: 90,272,397.64
Step by Step Solution
- Step 1: Write the proportion equation
118,350,889.07 : 163,310,082.12 = 65,420,446.68 : x - Step 2: Convert to fraction form
118,350,889.07/163,310,082.12 = 65,420,446.68/x - Step 3: Cross multiply
118,350,889.07x = 163,310,082.12 × 65,420,446.68 - Step 4: Simplify right side
118,350,889.07x = 10,683,818,519,637,882 - Step 5: Solve for x
x = 10,683,818,519,637,882/118,350,889.07 - Step 6: Final answer
x = 90,272,397.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.